We have two brand new TE 310's and it's becoming a challenge trying to keep the clutch fluid reservoir from leaking at the cap/seal joint. Bike 1 clutch release failed during the first ride off the showroom floor, and bike 2 started leaking at the 140 mile mark. Bike 1's cap seal was replaced immediately and is seeping fluid again at 45 miles. Bike 2's cap clutch perch was flooded with fluid during a long hard rocky ride, and after wiping it clean, did not show signs of leaking after a gentle ride. I purchased a cap seal as a standby. Does anybody have any expertise on fluid type or knowledge of this wacky condition?? Open to any thoughts..... Pictured is bike 1's seal and the tear near the upper left bolt as it was delivered from the dealer.
They are designed to burp fluid if the reservoir is too full. One thing that helped me (on the 630) was running the fluid pretty darn low in the reservoir. The tear could be from over tightening the cap. It doesn't need to be all that tight; just snug.
Thanks, I went to a KTM dealer and got a replacement cap/seal for Brembo and all is well now. Seems to be a factory assembly flaw. Dealer warranty is not an option since he wanted to keep the bike there for a week! I'm aware of over tightening and warping the lid. $27.00 us fixed it.